Overview
Foundations offers public introductory lessons. Practice is the onward difficulty hub. The Lab opens the full simulator. About explains the cardiovascular sandbox and its teaching uses. Tutorial is an intermediate demonstration. Learn opens protected Academic Halfday and Cases. Play opens The Crimson Circuit, and Quiz opens procedural waveform practice.
The Help field at the right of the navigation bar searches this library. Submit a question to see relevant articles. If no close match exists, the complete index remains available. The JD monogram is beside Help; the heart logo remains beside the Circulation Studio name.
Moving to another page or reloading can return you to the welcome entry unless the URL explicitly opens the Lab or a supported case route. Use Pause when you want to hold a simulation in place for discussion.